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72V51456 - Functional Block Diagram for 4K x36 x16Q
72V51456 - Block Diagram for 4K x36 x16Q


16Q x36 2M Multi-Queue, 3.3V

The 72V51456 multi-queue flow-control device is a single chip within which between 1 and 16 discrete FIFO queues can be setup. All queues within the device have common data input bus, (write port) and a common data output bus, (read port). Data written into the write port is directed to a respective queue via an internal de-multiplex operation, addressed by the user. Data read from the read port is accessed from a respective queue via an internal multiplex operation, addressed by the user.


  • Total Available Memory = 2,359,296 bits
  • Available Memory in blocks of 256 x 36
  • Independent Read and Write access per queue
  • 100% Bus Utilization, Read and Write on every clock cycle
  • 166 MHz High speed operation (6ns cycle time)
  • 3.7ns access time
  • Global Bus Matching - (All Queues have same Input Bus Width and Output Bus Width)
  • User Selectable Bus Matching Options: – x36in to x36out – x18in to x36out – x9in to x36out – x36in to x18out – x36in to x9out
  • FWFT mode of operation on read port
  • JTAG Functionality (Boundary Scan)
  • Available in a 256-pin PBGA package
  • Industrial temperature range (-40C to +85C) is available

Product Specification

Core Voltage (V)Bus Width (bits)Density (Kb)Pkg. CodeInterfaceI/O TypeI/O Frequency (MHz)Cycle Time (ns)OrganizationTemp. RangeArchitectureAccess Time (ns)
3.3362048BB256Synchronous3.3 V LVTTL133.00, 166.004K x 36 x 16-40 to 85°C, 0 to 70°CMulti-Queue

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
72V51456L6BBActiveBB256PBGA256CNoTrayCheck Availability
72V51456L6BB8ActiveBB256PBGA256CNoReelCheck Availability
72V51456L7-5BBActiveBB256PBGA256CNoTrayCheck Availability
72V51456L7-5BB8ActiveBB256PBGA256CNoReelCheck Availability
72V51456L7-5BBIPreviewBB256PBGA256INoTrayCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
72V51436-72V51456 Data Sheet Datasheet PDF 567 KB Jul 25, 2005
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
PCN#: A-0412-04 - To comply with Pb-free labels - Green Products Product Change Notice PDF 80 KB Dec 14, 2004
PCN#: A-0309-05, new m/c-G770 & d/a-2300 material Product Change Notice PDF 211 KB Oct 16, 2003
show all (4)
PCN#: A-0310-01, Green Products Product Change Notice PDF 26 KB Oct 10, 2003

Software & Tools

Title Type Format File Size Datesort icon
72V51236-72V51556 HSPICE Model - HSPICE ZIP 421 KB Jun 19, 2003